小学五年级数学中难方程的学习方法

35-X = 12 30+X = 50 450 X = 900 49/X = 7

X = 35-12 X = 50-30 X = 900/450 X = 49/7

X=13 X=20 X=2 X=7

4X=104 X-18=30 4X=6 .4 X+4=10

X=104/4 X=30+18 X=6 .4/4 X=10-4

X=26 X=48 X=1 .6 X=6

X/16 = 5 X+4 = 10 42/X = 14 10X = 60

X = 16 * 5 X = 10-4 X = 42/14 X = 60/10

X=90 X=6 X=3 X=6

X+8=40 9-X=5 .4 X+5 .8=9。6 2X=3 .八

X=40-8 X=9-5 .4 X=9 .6-5。8 X=3 .8/2

X=32 X=3 .6 X=5 .8 X=1 .九

2X+5 .8=9。6 10-2X=0 0 .5X+4=5 3X+3=15

X=3 .8/2 X=10/2 X=1/0 .5 X=12/3

X=1 .9 X=5 X=2 X=4

10X-6 = 64 46-X = 24 18+X = 35 X/4 = 35

X = 70/10 X = 46-24 X = 35-18 X = 35 * 4

X=7 X=22 X=17 X=140

X*7=49 6X=48 X+3 .8=4 1。5/X=5

X=49/7 X=48/6 X=4-3 .8 X=1 .5/5

X=7 X=8 X=0 .2 X=0 .三

9X = 0 18-4X = 6 2X+3X = 50 1 .3+2X=9 .七

X=0/9 X=12/4 X=50/5 X=8 .4/2

X=0 X=3 X=10 X=4 .2

10-X=9 .8 2X+5=9 7X-8=6 X-5-6=12

X=10-9 .8 X = 14/2 X = 14/7 X = 11+12

X=0 .2 X=7 X=2 X=23

19-2X = 5 96/8X = 3 6X-4X = 18 11X+9X = 18

X = 14/2 X = 32/8 X = 18/2 X = 18/20

X=7 X=4 X=9 X=0 .九

(* _ _ *)嘻嘻...四十够吗？